Brazilian dumortierite in quartz 1.390ct loose (faceted cut)
Sale price¥15,800
Brazilian dumortierite in quartz 1.573ct loose (faceted cut)
Sale price¥18,800
Brazilian dumortierite in quartz 0.993ct loose (faceted cut)
Sale price¥9,800
Pakistani oil-in quartz 0.361ct loose
Sale price¥11,000
Pakistani oil-in quartz 0.535ct loose
Sale price¥18,800
Brazilian dumortierite in quartz 1.906ct loose (faceted cut)
Sale price¥25,800
Brazilian dumortierite in quartz 2.227ct loose (faceted cut)
Sale price¥25,800
Brazilian dumortierite in quartz 0.979ct loose (faceted cut)
Sale price¥14,800
Brazilian dumortierite in quartz 1.060ct loose (faceted cut)
Sale price¥15,800
Brazilian ametrine 8.849ct loose
Sale price¥12,800
Benitoite 0.123ct loose (emerald cut)
Sale price¥39,800
Benitoite 0.107ct loose (emerald cut)
Sale price¥35,800
Benitoite 0.104ct loose (emerald cut)
Sale price¥29,800
Bicolor Benitoite 0.130ct loose (emerald cut)
Sale price¥65,800
Benitoite 2.5mm/0.065ct loose
Sale price¥17,800
Benitoite 2.5mm/0.079ct loose
Sale price¥23,800
Brazilian Tinkerbell Quartz (Pink Fire Quartz) 5.326ct loose
Sale price¥19,800
Tibetan bicolor andesine 1.818ct loose
Sale price¥21,800
Paraiba tourmaline from Mozambique 0.092ct loose
Sale price¥9,800
Unheated silky pink sapphire from Vietnam 0.161ct loose
Sale price¥7,980
Paraiba tourmaline from Brazil 0.132ct loose (CuO:2.1%.MnO:2.2%)
Sale price¥188,000
Benitoite 0.069ct loose
Sale price¥25,800
Paraiba tourmaline from Brazil 0.038ct loose
Sale price¥29,800
Paraiba tourmaline from Brazil 0.043ct loose
Sale price¥39,800
Paraiba tourmaline from Brazil 0.039ct loose
Sale price¥39,800
Paraiba tourmaline from Brazil 0.037ct loose
Sale price¥29,800
Paraiba tourmaline from Brazil 0.050ct loose
Sale price¥39,800
Paraiba tourmaline from Brazil 0.039ct loose
Sale price¥29,800
Paraiba tourmaline from Brazil 0.036ct loose
Sale price¥25,800
Conch pearl (with flame pattern) 0.439ct loose
Sale price¥39,800
Conch pearl (with flame pattern) 0.387ct loose
Sale price¥39,800
Benitoite 2.2mm/0.229ct loose
Sale price¥57,800
Andalusite 0.604ct loose
Sale price¥6,980
Brazilian Green Spodumene 2.132ct Loose Stone
Sale price¥12,800
Brazilian Green Spodumene 2.033ct Loose Stone
Sale price¥12,800
Brazilian Green Spodumene 1.999ct Loose Stone
Sale price¥12,800
Brazilian Green Spodumene 1.523ct Loose Stone
Sale price¥8,800
Brazilian Lazurite (Celestite) 0.281ct Ruth Japanese-German Edition
Sale price¥118,000
Bekily Blue Garnet from Madagascar (color change garnet) 0.297ct loose
Sale price¥19,800
Rhodochrosite 4.000ct loose from Detroit City
Sale price¥498,000
Opal 6mm/0.590ct loose (rose cut)
Sale price¥8,800
Sri Lankan star sapphire (4 rows) 1.473ct loose
Sale price¥79,800
Andesine from Mongolia 1.354ct loose
Sale price¥11,800
Brazilian Tinkerbell Quartz (Pink Fire Quartz) 6.004ct loose
Sale price¥15,800
Russian demantoid garnet (horsetail recognized) 0.378ct loose
Sale price¥39,800
Bicolor Zircon 0.468ct Ruth Japanese-German Dictionary
Sale price¥25,800
Why not take your favorite gemstone that you found at KARATZ and have it made into custom-made jewelry? It will be made by skilled Japanese craftsmen.
We carefully craft each piece of jewelry, starting with the stone setting, to match the individual characteristics of the gemstone.
So that more people can feel closer to jewellery and enjoy it easily.
We will introduce KARATZ's thoughts on products, the attention to detail and efforts in selecting gemstones and creating jewelry.
業界発展のための後進育成や事業協力、宝石の国スリランカの子どもたちへの支援活動など、KARATZの取り組みについてご紹介いたします。
KARATZ Books
These are books that KARATZ has been involved in writing, supervising, and planning. They are all books that allow you to enjoy gemstones from various angles. You can also purchase them directly.
jeweler's tools
For those who want to enjoy jewelry more but don't know what tools to use, we will introduce tools that are also used by KARATZ staff. You can also purchase them directly.